公开(公告)号：US11365712B2

公开(公告)日：2022-06-21

申请号：US16949742

申请日：2020-11-12

Applicant: Caterpillar Inc.

Inventor： David Todd Montgomery ,  Greg Hampson

IPC: F02M26/43 ,  F02D35/02 ,  F02D41/40 ,  F02P5/04 ,  F02P5/15

Abstract: A controller for a dedicated exhaust gas recirculation (D-EGR) engine is disclosed. The controller may receive a plurality of cylinder pressure signals, each of which is associated with a respective cylinder in a plurality of cylinders of the D-EGR engine. The plurality of cylinders includes at least one donor cylinder and a set of non-donor cylinders. The controller may receive a crankshaft angle signal associated with a crankshaft of the D-EGR engine. The controller may selectively adjust ignition timing of a cylinder, of the plurality of cylinders, based on the crankshaft angle signal and a cylinder pressure signal, of the plurality of cylinder pressure signals, associated with the cylinder; or a fuel rate of the at least one donor cylinder based on the crankshaft angle signal and a set of cylinder pressure signals, of the plurality of cylinder pressure signals, associated with the set of non-donor cylinders.